Put your knowledge and skills to the test with the case of an 82 year old woman who presents to the ED as she has become agitated by new vivid visual hallucinations. The patient has become quite frightened by these visions and has started carrying a knife for protection. Delirium, dementia and medication effects are all ruled out as potential causes.

Her medical history is significant for vision loss secondary to macular degeneration and diabetic retinopathy, as well as diabetes, hypothyroidism, and a herniated disc. In terms of her mental health she reports feeling anxious and experiencing a sleep disturbance due to her fears. She also reports feeling sad and worthless as she cannot hear or see as well when she was younger. Can you come up with a diagnosis or treatment plan?